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研究了用分子吸收光谱法测定硫化物。以镁空心阴极灯（ＨＣＬ）为辐射光源，测定了２０２．６ ｎｍ 处Ｈ２Ｓ的分子吸收。采用蠕动泵预富集和气动雾化预富集两种富集方法，考察了两种不同进样方式时实验参数的影响，这两种富集方法测定Ｓ２－ 的检出限均为０．０２ μｇ／ｍ Ｌ。并测定了钢样中硫的含量。
Sulfide was studied by molecular absorption spectroscopy. The molecular absorption of H2S at 202.6 nm was measured using a magnesium hollow cathode lamp (HCL) as a radiation source. Two kinds of enrichment methods, pre-enrichment by peristaltic pump and pre-enrichment by pneumatic atomization, were used to investigate the effect of experimental parameters on two different injection modes. The detection limits of S2-detection by these two enrichment methods were all zero. 02 μg / m L. The content of sulfur in the steel sample was also measured.